Definition of class day:
(n) :
(US, education) In colleges and universities, a day of the commencement season on which the leaverss celebrates the completion of its course, such as with guest speakers, reading of the class histories and poems, the planting of the class ivy (see Ivy Day (United States), etc.
(n) :
Alternative form of Class Day [(US, education) In colleges and universities, a day of the commencement season on which the leaverss celebrates the completion of its course, such as with guest speakers, reading of the class histories and poems, the planting of the class ivy (see Ivy Day (United States), etc.]